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15

Abacus Juniors Experts

Abacus Juniors Experts Lesson 5

Addition and subtraction in the 100s, practice without regrouping.

1 / 50

444

-124

2 / 50

999

-888

3 / 50

751

126

4 / 50

555

212

5 / 50

123

-111

6 / 50

244

-133

7 / 50

711

111

8 / 50

453

515

9 / 50

247

552

10 / 50

444

505

11 / 50

449

-200

12 / 50

999

-121

13 / 50

444

-123

14 / 50

611

-111

15 / 50

999

-777

16 / 50

277

-111

17 / 50

855

122

18 / 50

777

-222

19 / 50

411

511

20 / 50

599

100

21 / 50

255

211

22 / 50

666

111

23 / 50

999

-666

24 / 50

359

510

25 / 50

744

-611

26 / 50

400

-100

27 / 50

277

-116

28 / 50

324

665

29 / 50

888

-555

30 / 50

666

-555

31 / 50

111

666

32 / 50

544

-511

33 / 50

333

-311

34 / 50

566

-555

35 / 50

111

131

36 / 50

488

511

37 / 50

477

-366

38 / 50

876

-555

39 / 50

522

111

40 / 50

999

-444

41 / 50

232

555

42 / 50

131

112

43 / 50

444

-244

44 / 50

222

121

45 / 50

466

-166

46 / 50

244

-124

47 / 50

222

515

48 / 50

255

233

49 / 50

555

222

50 / 50

888

-678

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